Apparatus jfor gauging annular articles



Nov. 18, 1924- F. J. SHOOK APPARATUS FOR GAUGING ANNULAR ARTICLES Filed JarySO, 1922 Inuknlvr- Ref 6720018.

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P If] Nov. 18, 192 1- UNITED STATES PATENT OFFICE.

IiIAIlJI AILN' J. SHOCK, Oh .AQKTSQN, OHIO, ASSIIIGNOE TO THE F. GOQDIRICH COMIALNY, ()Ili NEXV YORK. N. 35., A. CORPORATION 013 NEW YORK.

AIJEA IMlTUS GAUGING ANNUIIAIL A'RlLICLE-S.

Application filed January 30, 1922.

lie it known that l. l iiouain l Snooui, a citizen of the llnited Slates, residing at Akron, in the county of Summit andv State oi liio. have invented a certain new and. useful Apparatus for Gauging Annular Articles, of which the following is a specifiration.

This in .'en tion relates to devices for determining the cinumilierentia]. size oil? annular articles. an example being the bead rings commonly used in siraightsidecl. pneumatic tires to render the bead portions thereof inextensible.

My rhic'l objects are to provide an improved. device adapted to give accurate measurement with a minimum distortion of the article being measiiired, and to provide a simple device adapted for rapid operation.

()ii the accompanying drawings:

hi '1. is a plan view of a device embodyin; and adapted to carry out a preferred term oil. my invention, with the work in place.

lfiip'. 2 is a trout elevation oil the same, with parts broken away.

.lleterriug to the drawings, is a table, upon which is secured a semi-circular piece ol angle-iron 1L curved in the plane of one at its flanges, which latter rests flatly upon the table, the other :tlange 12, rising vertirally from its inner periphery. A. complementary. semi-circular piece of angle-iron 1 having a vertical flange 14. at its inner pcri 'ihery, has one end pivoted on the table at '1?) (Fig. l). at the point where the adja cent ends of the vertical flanges 12 and 14: approximately abut each other, and the hori zontal flange of the iron 13 is cut away at the end. as shown at it; (Fig. l) to permit said iron to be turned about its pivot, the pivot being at the inner periphery oi? the iron. The angle irons .1 l. and '13 bus constilule a sul sl=u1hally tjlltflllltl. gauge. 16 is a ring in position on said gauge. 1T

is a diametric brace connecting; the ends of the stain-circular member 113 and 1'ovided, near its end farthest from the pivot 15, with a horizontal, laterally extending air 18, which is perforated to receive the upper end oili an arm 1.) oi a three armed lever, 20, pivoted on a horizontal axis on a bracket 21. depending; from the table, said arm, it) e:\'

Serial No. 532,526.

tending |,1 )ward through an opening 22 in the. table.

.i inother arm 23 oil. the three armed. lever extends horizontally from its pivot and is provided. with a weight 2-4: adapted to turn the iron 13 on its pivot 15 away from the iron 11, and the third arm of said lever, 25, extends in the opposite direction and is connect ed by a link 26 with a treadle 27, for swinging the iron 13 toward the. iron 1]., against the action oi said weight 2st, to close the gauge.

A bracket 28 on the angle-iron 13 is slidingly associated with a bracket 29 on the ta ble, as is clearly shown in Fig. 1, to pre vent upward displacement-0t said iron, and a bracket or bridge plate 30, transversely overlying the brace member 17, and permitting the latter to slide thereunder, is provided tor the same purpose.

At the ends of the angle irons 11 and 13 opposite the pivot 1.5, where said ends are ada 'ited. to be gapped apart, as clearly shown by the full lines in Fig. 1, a scale 31 is ad justaliily secured to the table 10 by means of bolts 31, 31, projecting ui iward 'l'rom said table through longitudinal. slots in said scale and provided with. clamping nuts above the latter, and an indicator 32, for said scale,

ured to the end portion of the movable Said scale, when placed, as shown, tance from the work, preferably is socalibrated as to read in terms of distances measured along the work.

in the operation of the device, the treadle 27 is depressed, closing; the angle irons 11, 1 :3, the iron 13 and other parts assuming the positions indicated. by dotted lines in Fig. 1, and. the ring to be gauged or measured is placed over the vertical :l'lann'es 12, 14, ot the gauge. The treadle is then released, and the weight 21-, i'ln'ougrh the arms 23 and 19 oil? the lever .20, opens the gauge against the ring in, with a definite pressure predetermine fl bv the mass o't said. weight. The combined length oil? the flanges 1.2, 1-11: being known, the length oi. the gap between their s1 reao-apart ends may be read from the scale 31 1-. ud added to said combined length, giving the circum'lereniial length ot the ring under a predetermined stretching force. the ring is distorted only slightly :trom true circular :liorm, errors resulting from distortion and is see or 7 5, for example, in the case of the particular scale shown in 1. With the scale so set, it may be determned at aglance whether each of the successive rings comes within the tolerance allowed.

The gauge being of the form described, the rings may be readily placed upon and removed therefrom, and the operating fea tures of the device are adapted for rapid, work.

hlodifications may be resorted to without departing from the scope of my invention,

and I do not wholly limit my claims to the specific construction shown.

I claim:

1. A ring-gauging device comprising a pair of members having arcuate ring-engaging surfaces, said members being hinged together, means for turning one of said members about said hinge to gap said members apart, and a scale bridging the gap thus formed.

2. A ring-gauging device comprising a pair of members formed with arcuate, freely out standing flanges providing a substantially circular surface adapted to fit within the ring, said members being hinged together. and a scale fixed with respect to one of said members in. position to bridge a gap between said members when they are spread apart on said hinge.

3. Airing-gauging device comprising a pair of members having arcuate surfaces which together substantially complete a circle, said members being hinged together at adjacent ends of said surfaces, on an axis parallel with the common axis of said sin-faces, said members being adapted to he swung from and toward each other, about the hinge axis, to cl'iange, in effect, the size of said circle.

l. A ring-gauging device comprising a pair of members having arcuate surfaces which together substantially complete a circle, said members being hinged together at adjacent ends of said surfaces, on an axis parallel with the common axis of said surfaces, said members being adapted to be swung from and toward each other, about the hinge axis, to change, in effect, the size of said circle, and means for urging said members apart with determinate force.

5. igauging device comprising a pair of gauging members which together are adapted substantially to fit the interior of the article to be gauged, one of said members being pivoted adjacent one end of the other, means for applying a predetermined force to spread said members apart, and a scale adapted to register the extent of their relative movement.

(5. A gaugii'ig device comprising a pair of gauging members the combined length of whose work-engaging faces is slightly less than the peripheral length of the article to be gauged, said members being pivoted together at adjacent ends of said work-engaging faces. yielding means for s ireading said members apart. a treadle adapted to draw said members together against the action. of said yielding means, and a scale so positioned as automatically to register the relative movement of said members.

7. Apparatus of the character described comprising a fixed member formed with an arcuate surface adapted freely to receive and contact with the inner periphery of the work, a similar member having one end pivoted adjacent an end of the first said member, their arcuate surfaces approximately completing a circle, means for turning said pivoted member about its pivot, and a scale bridging the gap thus formed between said members.

In witness whereof I have hereunto set my hand this 27th day of January, 1922.

FLORAIN J. SI-TOOK.

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